Bacteria caught evolving a major new ability.

An evolutionary biologist has watched a colony of E. coli evolve a stunning new capability, right in the lab. He let a single bacterium reproduce for 44,000 generations in twelve populations. It was just one of the populations that, around the 31,500th generation, suddenly developed the ability to metabolize citrate, thus doubling its available food …

Global warming’s got nothing to do with the sun.

Yet another study has shown that there’s no correlation between levels of solar activity and global climate change. Global climate change deniers have largely realized that their position is akin to denying gravity, and have largely moved along to asserting that the problem is solar flares. The trouble, of course, is that the facts just …

BMJ debunks seven medical myths.

People get upset when I point out that the medical belief that they hold dear is just a myth. So, for the record, the British Medical Journal agrees that there is no need to drink eight glasses of water each day, fingernails don’t continue to grow after death, shaved hair won’t grow back darker, turkey …

Chikungunya in Italy.

Global warming deniers say that there ain’t nothin’ wrong with a little 2°F temperature increase — who could it affect? Ask a resident of Castiglione di Cervia. Global climate change has increased the range of tiger mosquitos, leading to an outbreak of dengue fever in Italy this August. The mosquitos’ range now extends into Switzerland …

The Prius is (duh) environmentally superior to a Hummer.

A few months ago it was widely reported that, all inputs and outputs considered, a Hummer is more environmentally friendly than a Prius. That struck me as entirely plausible, because batteries are notoriously environmentally demanding. Now the Sierra Club has done the math and found that the Prius is far better than a Hummer, better …

Our essential infections.

In the movie “Contact,” Jodie Foster plays an astronomer who discovers a signal that, when decoded, proves to be instructions to build an interdimensional spacecraft. Great story — great movie — but the book had a far more stunning premise. In that, Foster’s character takes up mathematics, and discovers that, at about a sextillion digits …